I made this by hand with care. It can maintain 80 degrees Celsius for 2 hours, making it perfect for insulated cooking. The cushion is about 30 cm in diameter. It can fit a pot with a diameter of 27 cm. It contains over 300 grams of cotton, making it very fluffy and highly insulating. Including the cushion, it contains over 400 grams. Shipping will be slightly compressed. If using Eco-Mercari shipping, I will ship it as is! The cotton is secured with embroidery thread and buttons to prevent shifting. Although it's cotton, I've packed it with a good balance, but please understand that this is a handmade item. Pressure cookers are heavy and difficult to take out and put away, but since I started using a pot cozy, I haven't used it at all and got rid of it. Wrapping the pot in a towel and using the pot cozy further increases the insulation effect and prevents soiling. I welcome questions. Thank you.